Fudge cake slice - Penguin Books New Zealand

Ingredients

• 1 packet of plain biscuits – wines, malts, whatever is cheap
• 1 1/2 cups desiccated coconut
• 1 cup raisins, sultanas or Craisins
• 395g can sweetened condensed milk
• 2 tbsp cocoa
• 150g butter
• 1 tsp vanilla essence
• 1 1/2 cups icing sugar
• 3 tbsp cocoa
• 3 tbsp butter, at room temperature
• 2 tbsp hot water
• 1/2 tsp vanilla essence
• 100s and 1000s to decorate (optional)